Scientists create the first 3D-printed human corneas

Artificial lens implant promises to give patients 'HD vision'

Implanted lenses may be old hat compared to newfangled sight restoration techniques involving radiation beams and teeth, but it looks like some eye surgeons in the UK have now come up with a few new tricks that promise to let patients see better than ever. The new process apparently starts out like a standard procedure for cataracts, but makes use of lenses made from light-sensitive silicone that can be fine tuned several times after the surgery, eventually giving the patient "HD vision" that's said to be better than 20/20. The lenses can apparently even be adjusted for either bifocal or varifocal use, eliminating the need for some patients to wear glasses at all. Head on past the break for a video.